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Cheap flights from Louisville to Sydney from $674

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
7:00 am - 8:35 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
33h 35m2 stops Houston George Bush Intcntl Auckland Intl
Air New Zealand Logo
7:25 pm - 9:58 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
42h 33m2 stops Auckland Intl Houston George Bush Intcntl
$1,255Air New Zealand
Mon, Nov 9 - Sat, Nov 14
United Airlines Logo
3:50 pm - 7:00 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
23h 10m1 stop Houston George Bush Intcntl
United Airlines Logo
9:20 am - 1:33 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
20h 13m1 stop Houston George Bush Intcntl
$1,308United Airlines
Tue, Dec 1 - Tue, Dec 8
United Airlines Logo
3:45 pm - 7:00 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
23h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
9:20 am - 1:33 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
20h 13m1 stop Houston George Bush Intcntl
$1,308United Airlines
Sun, Nov 29 - Mon, Dec 7
United Airlines Logo
7:05 am - 7:00 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
31h 55m1 stop Houston George Bush Intcntl
United Airlines Logo
9:20 am - 7:35 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
26h 15m1 stop Houston George Bush Intcntl
$1,308United Airlines
Tue, Dec 1 - Tue, Dec 8
United Airlines Logo
3:50 pm - 9:20 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
25h 30m2 stops Houston George Bush Intcntl San Francisco
United Airlines Logo
1:20 pm - 10:09 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
24h 49m2 stops San Francisco Chicago O'Hare Intl
$1,312United Airlines
Tue, Dec 1 - Tue, Dec 8
Delta Logo
7:00 am - 8:30 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
33h 30m2 stops Minneapolis St Paul Los Angeles
Delta Logo
10:40 am - 9:13 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
26h 33m2 stops Los Angeles Detroit Metropolitan Wayne County
$1,313Delta
Tue, Dec 1 - Tue, Dec 8
Qantas Airways Logo
4:14 pm - 8:50 pmSDF  Louisville Intl-SYD Sydney Kingsford Smith
36h 36m2 stops Dallas/Fort Worth Auckland Intl
Qantas Airways Logo
2:05 pm - 6:28 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
20h 23m1 stop Dallas/Fort Worth
$1,320Qantas Airways
Wed, Jan 27 - Sat, Feb 13
Qantas Airways Logo
4:14 pm - 8:50 pmSDF  Louisville Intl-SYD Sydney Kingsford Smith
36h 36m2 stops Dallas/Fort Worth Auckland Intl
Qantas Airways Logo
2:05 pm - 6:28 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
20h 23m1 stop Dallas/Fort Worth
$1,341Qantas Airways
Wed, Jan 27 - Sat, Feb 13
Qantas Airways Logo
4:14 pm - 8:50 pmSDF  Louisville Intl-SYD Sydney Kingsford Smith
36h 36m2 stops Dallas/Fort Worth Auckland Intl
Qantas Airways Logo
2:05 pm - 6:28 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
20h 23m1 stop Dallas/Fort Worth
$1,342Qantas Airways
Wed, Jan 27 - Sat, Feb 13
Delta Logo
5:25 pm - 6:50 amSDF  Louisville Intl-SYD Sydney Kingsford Smith
23h 25m2 stops Detroit Metropolitan Wayne County Los Angeles
Delta Logo
9:15 am - 10:08 pmSYD  Sydney Kingsford Smith-SDF Louisville Intl
26h 53m2 stops Los Angeles Atlanta Hartsfield-Jackson
$1,521Delta
Wed, Aug 26 - Sat, Sep 5

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Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets
Air New Zealand
Nov 9
SDF7:00 amLouisville Intl
33h 35m
2 stops
SYD8:35 amSydney Kingsford Smith
Nov 14
SYD7:25 pmSydney Kingsford Smith
42h 33m
2 stops
SDF9:58 pmLouisville Intl
$1,255
Air New Zealand
Nov 9
SDF3:45 pmLouisville Intl
29h 05m
2 stops
SYD12:50 pmSydney Kingsford Smith
Nov 14
SYD7:25 pmSydney Kingsford Smith
42h 33m
2 stops
SDF9:58 pmLouisville Intl
$1,352
Air New Zealand
Aug 26
SDF3:35 pmLouisville Intl
29h 05m
2 stops
SYD10:40 amSydney Kingsford Smith
Sep 5
SYD10:20 amSydney Kingsford Smith
42h 09m
1 stop
SDF2:29 pmLouisville Intl
$2,011

United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets
United Airlines
Dec 1
SDF7:05 amLouisville Intl
31h 55m
1 stop
SYD7:00 amSydney Kingsford Smith
Dec 8
SYD9:20 amSydney Kingsford Smith
26h 15m
1 stop
SDF7:35 pmLouisville Intl
$1,308
United Airlines
Nov 29
SDF9:02 amLouisville Intl
29h 58m
2 stops
SYD7:00 amSydney Kingsford Smith
Dec 7
SYD9:20 amSydney Kingsford Smith
26h 54m
2 stops
SDF8:14 pmLouisville Intl
$1,312
United Airlines
Dec 1
SDF9:32 amLouisville Intl
31h 33m
2 stops
SYD9:05 amSydney Kingsford Smith
Dec 8
SYD9:20 amSydney Kingsford Smith
20h 13m
1 stop
SDF1:33 pmLouisville Intl
$1,313

momondo Fare Finder

 
Customize your flight search to find flights from Louisville to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 14, 2026.
Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Mon 11/9

7:00 am-8:35 am

2 stops33h 35m

Sydney Kingsford Smith

Sat 11/14

7:25 pm-9:58 pm

2 stops42h 33m

$1,255
Quickest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

3:50 pm-7:00 am

1 stop23h 10m

Sydney Kingsford Smith

Tue 12/8

9:20 am-1:33 pm

1 stop20h 13m

$1,308

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 11/29

3:45 pm-7:00 am

1 stop23h 15m

Sydney Kingsford Smith

Mon 12/7

9:20 am-1:33 pm

1 stop20h 13m

$1,308

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

7:05 am-7:00 am

1 stop31h 55m

Sydney Kingsford Smith

Tue 12/8

9:20 am-7:35 pm

1 stop26h 15m

$1,308

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

3:50 pm-9:20 am

2 stops25h 30m

Sydney Kingsford Smith

Tue 12/8

1:20 pm-10:09 pm

2 stops24h 49m

$1,312

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

7:00 am-8:30 am

2 stops33h 30m

Sydney Kingsford Smith

Tue 12/8

10:40 am-9:13 pm

2 stops26h 33m

$1,313

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 1/27

4:14 pm-8:50 pm

2 stops36h 36m

Sydney Kingsford Smith

Sat 2/13

2:05 pm-6:28 pm

1 stop20h 23m

$1,320

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 1/27

4:14 pm-8:50 pm

2 stops36h 36m

Sydney Kingsford Smith

Sat 2/13

2:05 pm-6:28 pm

1 stop20h 23m

$1,341

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 1/27

4:14 pm-8:50 pm

2 stops36h 36m

Sydney Kingsford Smith

Sat 2/13

2:05 pm-6:28 pm

1 stop20h 23m

$1,342

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 8/26

5:25 pm-6:50 am

2 stops23h 25m

Sydney Kingsford Smith

Sat 9/5

9:15 am-10:08 pm

2 stops26h 53m

$1,521

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month August is also very affordable. Most momondo users find prices during this month for around $1,191.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 9% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

23h 10m

Direct flights

None
The fastest flight from Louisville to Sydney takes 23h 10m
There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.
Search flight deals

Frequently asked questions about flying from Louisville to Sydney

  • How far is Louisville Intl to Sydney Kingsford Smith by plane?

    A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 23h 10m.

  • When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Louisville to Sydney?

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $1,140Free CancellationRating
7.8
8,502 reviews
Search Delta flights
United AirlinesPriceFrom $1,212Free CancellationRating
7.4
10,108 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Wollongong
Penrith
Katoomba
Leura
Cronulla
Randwick
Manly
Lithgow
Coogee
Terrigal
Charlestown
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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